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  1. Scott06

    Need help reinstalling choke linkage (Mercarb 1389-9562 carburetor)

    thats the accelerator pump lever. you will have to take the top off the carb and there is a set screw holding to to the pump inside the carb. the smaller rod uses a small cotter pin or clip to hold it on. Mikes carb parts has some god videos of mercrab rebuilds not sure if its on his website...
  2. Scott06

    thinking of a Delco EST ignition system conversion but have a few concerns....

    If you can still get good sets of replacement points I wouldn’t spend the money for the delco. I filed and gapped a set of points this spring on a 1973 evinrude, runs like new now ( also rebuilt the carb). From the looks of them and the amount of rubbing block wear they are probably original...
  3. Scott06

    alpha 1 gen 1 noise

    pull the drive check the gimbal bearing first, as by the mouse I’m thinking that. If that is ok drain drive lube and pull the top cap. See if metal is in the lube or water
  4. Scott06

    Need help: Bizarre Bravo III freshwater galvanic corrosion quandry

    I was surprised at how much more ‘active’ the oem ones were Vs aftermarket. Of course this is a sample size of one…funny thing is seeing ADs comment about aluminum is I took off the AL ones that were on there, PO used this boat in brackish bay areas of Deleware. it was my understanding via word...
  5. Scott06

    Need help: Bizarre Bravo III freshwater galvanic corrosion quandry

    not sure where you get your magnesium annodes from, but I also had some corrosion on a fresh water alpha gen 2, Lift kept and there is no shore power to it. My hoist runs of 12 vdc. I run a revolution 4 prop which is a big chunk of SS. I added a mercathode, still getting some bubbling around...
  6. Scott06

    Loosing Faith in Humanity . . .

    Also plan on getting a tax document from ebay. I so,d a machine from work on my eBay acct ended up getting a 1099 or similar for $8 from ebay …
  7. Scott06

    2012 3.0L TKS runs great with muffs, but slow on lake...

    usually the fuel line is 3/8" double flare like brake lines would think you can get a coupler and a short section of line cut in half & use some 3/8 ID hose to splice in your T for the gauge The TKS uses an enrichment module (valve) to richen the fuel mixture until the engine warms up, it...
  8. Scott06

    2012 3.0L TKS runs great with muffs, but slow on lake...

    At this point I would test the fuel pressure on the water at the rpm where you feel like you are hitting the wall where it should be doing better. if the float wasnt cracked its probably all right. Mikes carbs had at one time brass floats for mercarbs not sure if TKS is the same thing. the 3...
  9. Scott06

    1997 Mercruiser 4.3 LX not running steady steady at idle or higher RPM's

    Yes the advance knob should compensate so the light hits on the tdc mark -say you want 8 deg BTDC set the knob to 8 should offset the light to flash on the tdc mark. Also can be used to test total advance which is also important
  10. Scott06

    28' Pontoon with 3.0 Mercruiser Prop

    Google prop slip calculator you put in pitch rpm and mph it compute % slip
  11. Scott06

    2012 3.0L TKS runs great with muffs, but slow on lake...

    I saw new fuel pump but was fuel pump pressure measured under load ? my other hobby is old cars - its a chronic issue with mechanical fuel pumps these days - the pressure output is all over the place, even on what was historically considered good brands
  12. Scott06

    Stupid me, no oil

    I think I had to buy longer ones and cut them down a 1/4" or so When I bought it a few years back it was about $100 stainless is the same price as the old anoidized Al https://www.hardin-marine.com/p-104396-o2-spacer-stainless-steel-for-stock-mercury-exhaust-with-wet-joint-riser.aspx
  13. Scott06

    Stupid me, no oil

    Ill have to check mine out this year. I'm in fresh but I would have expected it to hold up better
  14. Scott06

    Carb tuning

    yes some of the factory webber carbs used 3 step metering rods not sure which engines etc but there were a few. Can only think it shows that the binary rich/lean didnt work that well. I found the pump rod linkage slop when I put the AFR meter on. I never would have found it unless I had the...
  15. Scott06

    2012 3.0L TKS runs great with muffs, but slow on lake...

    I used simple green in an u on my friends holley off his Volvo penta , cleaned it and didn’t strip the finish. Simple green is what edlebrock recommends for its marine finish to not strip the gold Finish off.
  16. Scott06

    2012 3.0L TKS runs great with muffs, but slow on lake...

    the idle mix screws wont make any difference how it runs at higher rpm , just indicative that something was off if it ran best that many screws out.
  17. Scott06

    Carb tuning

    there have been a few threads - I think in this one two guys ended up wit the same tune on a vortec 4.3 ... https://forums.iboats.com/threads/stumbling-edelbrock-1409-4-3l-v6.670697/page-2 another one https://forums.iboats.com/threads/edelbrock-1409-2114-on-stock-4-3l-vortec-engine.600582/...
  18. Scott06

    2012 3.0L TKS runs great with muffs, but slow on lake...

    Correct no points or condenser in a delco est. If you are getting a good spark that jumps 1/4" gap or so then no the coil is not the issue Have you checked the tach vs a known shop tach? And you are getting a total advance of say 25-28 at 2500 rpm or so? If that is correct then I might go...
  19. Scott06

    Help with early 80s mercruiser 140hp

    Id start with a few basics use a spark gap tester to make sure your spark can jump a 1/4” gap or more. If the fuel pump was over flowing quite possible the plugs are fouled. Maybe turn the idle speed screw in / up a bit, fatten the idle mix up a hair. Leave the distributor loose so you can turn...
  20. Scott06

    Loud Rattle On Startup

    is the starter gear retracting or getting hung up? Any rocks or debris in the pump or trapped in the nozzle?
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